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CVE-2020-15158

HIGH
Published 2020-08-26T18:00:16
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Expert Analysis

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CVSS Score

V3.1
7.7
/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.024
probability
of exploitation in the wild

There is a 2.4% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.843
Higher than 84.3% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
LOW
Integrity
LOW
Availability
HIGH

Description

In libIEC61850 before version 1.4.3, when a message with COTP message length field with value < 4 is received an integer underflow will happen leading to heap buffer overflow. This can cause an application crash or on some platforms even the execution of remote code. If your application is used in open networks or there are untrusted nodes in the network it is highly recommend to apply the patch. This was patched with commit 033ab5b. Users of version 1.4.x should upgrade to version 1.4.3 when available. As a workaround changes of commit 033ab5b can be applied to older versions.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

mz-automation

libiec61850

Affected Versions:

< 1.4.3

References

https://github.com/mz-automation/libiec61850/security/advisories/GHSA-pq77-fmf7-hjw8
https://github.com/mz-automation/libiec61850/issues/250
https://github.com/mz-automation/libiec61850/commit/033ab5b6488250c8c3b838f25a7cbc3e099230bb
Published: 2020-08-26T18:00:16
Last Modified: 2024-08-04T13:08:22.296Z
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